from __future__ import unicode_literals
import frappe, json
from frappe.model.utils.user_settings import update_user_settings, sync_user_settings

def execute():
	users = frappe.db.sql("select distinct(user) from `__UserSettings`", as_dict=True)

	for user in users:
		user_settings = frappe.db.sql('''
			select
				* from `__UserSettings`
			where
				user="{user}"
		'''.format(user = user.user), as_dict=True)

		for setting in user_settings:
			data = frappe.parse_json(setting.get('data'))
			if data:
				for key in data:
					update_user_setting_filters(data, key, setting)

	sync_user_settings()


def update_user_setting_filters(data, key, user_setting):
	timespan_map = {
		'1 week': 'week',
		'1 month': 'month',
		'3 months': 'quarter',
		'6 months': '6 months',
		'1 year': 'year',
	}

	period_map = {
		'Previous': 'last',
		'Next': 'next'
	}

	if data.get(key):
		update = False
		if isinstance(data.get(key), dict):
			filters = data.get(key).get('filters')
			if filters and isinstance(filters, list):
				for f in filters:
					if f[2] == 'Next' or f[2] == 'Previous':
						update = True
						f[3] = period_map[f[2]] + ' ' + timespan_map[f[3]]
						f[2] = 'Timespan'

			if update:
				data[key]['filters'] = filters
				update_user_settings(user_setting['doctype'], json.dumps(data), for_update=True)


